Train control



Feb. 10, 1931. R. F. LIPFORD TRAIN CONTROL Filed July 18, 1929 2 Sheets-Sheet l In ven tor fiIi vfbrd v Attorney R. F. LIPFORD Feb. 10, 1931.

TRAIN CONTROL Filed July 18; 1929 2 Sheets-Sheet 2 Inienior filajrford A itorney UNITE) srATss,

P'A TE ROBERT FRANKLIN LIrroRn, or nAnnLnYQwnsrzvrRsnvIA TRAIN CONTROL App1ioation filed July 18,

The present invention relates to new and useful improvements in automatic traincontrol and more particularly to a novel brake actuating mechanism operable in the event the train becomes derailed, a journal burns down, a bolt drops, or in fact in numerous other emergencies.

The principal object of theinvention is to provide an automatic brake control which while being automatic in operation will not be convenient for actuation by persons unauthorized to operate the same. Another importantobject of the lnventlon is to provide a train-control of the character 1 mentioned. which will 'be relatively'cheapto install on present day types of rolling stock.

These and numerous other important ob jects and advantages of the invention will become more apparentto thereader after considering the invention as described? and claimed hereinafter.

In thedrawings: '7 Figure 1 represents a top plan view showing one truck of a railway car with the usual brake mechanism removed and disclosing the arrangement of the parts j of the present invention. V r c v Figure 2 represents a perspective view showing the novel valve arrangement and the actuating'cables leading therefrom Figure 3 is a fragmentary and elevation of the truck disclosing the novel valve arrangement and the cables connecting the .dis- Iocatable parts.

I a journal B at each end. The bolster C pro jects atiits ends through the frame A-A in the manner shown or in fact any conventional manner, it being understoodthat these parts are standard,although the invention Figure 4 represents a vertical sectional 1929. Serial to. 379,258.

may be adapted for use with modified forms of truck constructions without departing from the spirit and scope of theinvention as claimed hereinafter. Y

The axles DD have their ends disposed @{3- 7 through the journals B and each axle is pro-j :vided with a pairof flanged wheels EE. ,l V i v The usual brakeairline extends-across the truck 1n the manner shownln Figure l and] in this invention the pipeline is broken by a 69 cross fitting 5. A T-fitting 6 is provided at each side of the airline F andis connected l to the cross fitting 5 through the medium of ar -valve structure '7' Each valve structure 7 isprovided with a lever 8 for actuating its 54? valve member and the control line 9 extends from this lever to a point where the same'can lie-actuated manually; f

Theremaining ends of each fitting 6.have

a valve'lO installed thereon for normally'l' Q r 1 w ymaintaining thesame closed. Each of these valves 10 has a, valve element therein operable by the lever; The valves-lO of each T-fit-V ting are connected in themanner shown in Figure 1. One valve 10 has a cable 12 extending from its lever ll to one of the journals B while another cable 13 extends from the same lever to the truck frame A. The lever ll of the other valve 10 hasacable 14: extending therefrom for connection to the other 8Q journal on the same side of the strut, while the cable 15 extends from the said lever for V connection to thebolster'Badjacent theend nearest theaforementioned journals.- The cables 12, 13', 14 and 15 are trained across pulleys 16', whichmay be of any suitable type. lclaim: or it A train control device" comprising a carr .truck including the frammbolsters and jour V nalsoi an an brake lineextendlng 'long1tud1 with said crossfitting, a luralityrof paired ,j

vali'e operating cables mountcdon the frame anci'bolsters of said cartruck respectively, n f y said cables being trained over Bald. pairs of pulleys with their respective outer ends at; 'ta'chec'i to the'qournals of the cartruck, oer? tain of said cables being attached at their inner ends to the said bolsters and the remaining cables being'attached to the truck frame, said cables being connected between their attached ends to the said control valves of the said air outlet.

In testimony whereof I aflix my signature. ROBERT" FRANKLIN LI-PFOR'ID. 

